This 9 5/8 Oz Strauss Rocks Glass (PM227ZX) is presented by Libbey. This glass is made with Luigi Bormioli crystal glass. Bormioli glass is made from the purest of raw materials, which produces glass with a high level of transparency. The entire Bormioli collection has been developed to provide a superior, resonant blown glass in a quality and purity rivaling that of lead crystal. For nearly 200 years, Libbey has been very proud of its position as North America’s leading designer, manufacturer and marketer of high-quality glass tableware for the foodservice industry. Today, it is widely recognized that Libbey is the leading producer of glass tableware for the foodservice industry in North America.